package net.tbao.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import net.tbao.common.utils.R;
import net.tbao.product.entity.SkuImagesEntity;
import net.tbao.product.entity.SpuInfoDescEntity;
import net.tbao.product.feign.SeckillFeigService;
import net.tbao.product.service.*;
import net.tbao.product.vo.SecKillInfoVo;
import net.tbao.product.vo.SkuItemSaleAttrVo;
import net.tbao.product.vo.SkuItemVo;
import net.tbao.product.vo.SpuItemGroupAttr;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import net.tbao.common.utils.PageUtils;
import net.tbao.common.utils.Query;

import net.tbao.product.dao.SkuInfoDao;
import net.tbao.product.entity.SkuInfoEntity;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {
    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SpuInfoDescService spuInfoDescService;
    @Autowired
    AttrGroupService attrGroupService;
    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    ThreadPoolExecutor threadPoolExecutor;

    @Autowired
    SeckillFeigService seckillFeigService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
        this.baseMapper.insert(skuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {

        QueryWrapper<SkuInfoEntity> queryWrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((wrapper)->{
                wrapper.eq("sku_id",key).or().like("sku_name",key);
            });
        }

        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){

            queryWrapper.eq("catalog_id",catelogId);
        }

        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(catelogId)){
            queryWrapper.eq("brand_id",brandId);
        }

        String min = (String) params.get("min");
        if(!StringUtils.isEmpty(min)){
            queryWrapper.ge("price",min);
        }

        String max = (String) params.get("max");

        if(!StringUtils.isEmpty(max)  ){
            try{
                BigDecimal bigDecimal = new BigDecimal(max);

                if(bigDecimal.compareTo(new BigDecimal("0"))==1){
                    queryWrapper.le("price",max);
                }
            }catch (Exception e){

            }

        }


        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                queryWrapper
        );

        return new PageUtils(page);
    }

    @Override
    public List<SkuInfoEntity> getSkusBySpuId(Long spuId) {
        List<SkuInfoEntity> list = this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_id",spuId));
        return list;
    }

    /**
     * 商品详情
     * @param skuId
     * @return
     */
    @Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo=new SkuItemVo();

        CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
            //TODO 1,SKU 基本信息获取 pms_sku_info
            SkuInfoEntity info = getById(skuId);
            skuItemVo.setInfo(info);
            return info;
        }, threadPoolExecutor);

        CompletableFuture<Void> saleAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            //TODO 3,获取spu的销售属性组合
            List<SkuItemSaleAttrVo> saleAttrVos = skuSaleAttrValueService.getSaleAttrsBySpuId(res.getSpuId());
            skuItemVo.setSealeAttr(saleAttrVos);
        }, threadPoolExecutor);

        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync(res -> {
            //TODO 4,获取spu的介绍
            SpuInfoDescEntity spuInfoDescEntity = spuInfoDescService.getById(res.getSpuId());
            skuItemVo.setDesp(spuInfoDescEntity);
        }, threadPoolExecutor);

        CompletableFuture<Void> baseAttrFuture = infoFuture.thenAcceptAsync(res -> {
            //TODO 5,获取spu的规格参数信息
            List<SpuItemGroupAttr> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
            skuItemVo.setGroupAttrs(attrGroupVos);
        }, threadPoolExecutor);

        // TODO 2,sku 的图片信息 pms_sku_images
        CompletableFuture<Void> imgsFuture = CompletableFuture.runAsync(() -> {
            List<SkuImagesEntity> images = skuImagesService.getImgesBySkuId(skuId);
            skuItemVo.setImages(images);
        }, threadPoolExecutor);

        // TODO 3 查询当前SKU是否参与秒杀
        CompletableFuture<Void> voidCompletableFuture = CompletableFuture.runAsync(() -> {
            R r = seckillFeigService.skuSeckillInfo(skuId);
            if (r.getCode() == 0) {
                SecKillInfoVo data = r.getData(new TypeReference<SecKillInfoVo>() {
                });
                skuItemVo.setSecKillInfoVo(data);
            }
        }, threadPoolExecutor);


        //等待所有任务完成
        CompletableFuture.allOf(saleAttrFuture,descFuture,baseAttrFuture,imgsFuture,voidCompletableFuture).get();

        return skuItemVo;
    }
}

